NEW YORK — At least one of four people taken into custody on drug charges during an investigation of actor Philip Seymour Hoffman's suspected fatal heroin overdose had the actor's cellphone number, two law enforcement officials said Wednesday.
Investigators zeroed in on the four after a tipster, responding to publicity about Hoffman's death, told police he had seen Hoffman at the lower Manhattan apartment building where they were arrested on Tuesday and he believed that's where Hoffman got the heroin, the officials said.
After obtaining search warrants for two apartments in the building, police found about 350 packets of heroin in one of them, the officials said. They also learned from phone records that one of the suspects had Hoffman's number, strengthening the theory that they may have supplied him with drugs, the officials said.
Philip Seymour Hoffman (1967-2014)
In a Jan. 19, 2014 photo Phillip Seymour Hoffman poses for a portrait at The Collective and Gibson Lounge Powered by CEG, during the Sundance Film Festival in Park City, Utah. Hoffman, who won the Oscar for best actor in 2006 for his portrayal of writer Truman Capote in "Capote," was found dead Sunday in his apartment in New York with what law enforcement officials said was a syringe in his arm. He was 46. (Photo by Victoria Will/Invision/AP)
Philip Seymour Hoffman, right, and director Anton Corbijn, rear, are interviewed at the premiere of the film "A Most Wanted Man" during the 2014 Sundance Film Festival, on Sunday, Jan. 19, 2014, in Park City, Utah. (Photo by Danny Moloshok/Invision/AP)
This photo provided by the Sundance Institute shows Philip Seymour Hoffman, left, and Eddie Marsan in a scene from the film "God's Pocket." (AP Photo/Sundance Institute, Lance Acord)
This photo provided by the Sundance Institute shows Philip Seymour Hoffman, right, and Rachel McAdams, front, in a scene from the film, "A Most Wanted Man" which premiered at the 2014 Sundance Film Festival. (AP Photo/Sundance Institute)
In a Sunday, March 5, 2006, file photo, actor Philip Seymour Hoffman poses with the Oscar he won for best actor for his work in "Capote" at the 78th Academy Awards, in Los Angeles. (AP Photo/Kevork Djansezian, File)
This file film image released by The Weinstein Company shows Joaquin Phoenix, left, and Philip Seymour Hoffman in a scene from "The Master." Police say Phillip Seymour Hoffman was found dead in his New York City apartment Sunday, Feb. 2, 2014. He was 46. (AP Photo/The Weinstein Company, File)
In this image released by Colombia Pictures, Philip Seymour Hoffman, left, and Ryan Gosling are shown in a scene from "Ides of March." (AP Photo/Columbia Pictures - Sony, Saeed Adyani, File)
In this undated file image released by Miramax Film Corp., Philip Seymour Hoffman portrays Father Flynn, right, and Meryl Streep portrays Sister Aloysius in a scene from "Doubt." (AP Photo/Miramax Film Corp, Andrew Schwartz, File)
In this undated publicity photo released by Sony Pictures Classics, Philip Seymour Hoffman portrays author Truman Capote in a scene from the film "Capote." (AP Photo/Attila Doroy, Sony Pictures Classics, File)
In a Monday, Nov. 18, 2013 file photo, Philip Seymour Hoffman seen at Lionsgate's 'The Hunger Games: Catching Fire' Los Angeles Premiere, in Los Angeles. (Photo by Alexandra Wyman/Invision for Lionsgate/AP Images, File)
This Nov. 18, 2013 file photo shows Philip Seymour Hoffman at the Los Angeles premiere of "The Hunger Games: Catching Fire" at Nokia Theatre LA Live. (Photo by Jordan Strauss/Invision/AP, File)
Police stand guard outside the home of actor Philip Seymour Hoffman, who was found dead in his Greenwich village apartment, Sunday, Feb. 2, 2014, in New York. He was 46. (AP Photo/John Minchillo)
People look toward the home of Philip Seymour Hoffman, Sunday, Feb. 2, 2014, in New York. (AP Photo/Matt Rourke)
Some of the packets found in Hoffman's apartment were variously stamped with the ace of hearts and others with the ace of spades. Those found in the building where the arrests occurred had different brand names, including Black List and Panda, the officials said.
The officials weren't authorized to speak about evidence in the ongoing investigation of the death and spoke to The Associated Press on the condition of anonymity.
Police were still waiting for a cause of death for the Oscar-winning actor from the medical examiner's office, which said on Wednesday that more tests were needed.
There was no timetable for Hoffman's autopsy to be finished, said medical examiner's office spokeswoman Julie Bolcer, who declined to discuss the pending tests. Toxicology and tissue tests are typically done in such cases.